Керамическая форсунка из нитрида бора без


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Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-17-2025 0.70 $* 0.52 $*
Aug-17-2025 0.93 $* 0.46 $*
Jul-17-2025 0.57 $* 0.75 $*
Jun-17-2025 0.35 $* 0.26 $*
May-17-2025 0.40 $* 0.45 $*
Apr-17-2025 0.18 $* 0.33 $*
Mar-17-2025 0.18 $* 0.54 $*
Feb-17-2025 0.63 $* 0.42 $*
Jan-17-2025 0.46 $* 0.27 $*

Характеристики



Details Images




Material Introduction


At UNIPRETEC, we produce several advanced ceramic parts with fine engineered ceramics, and one of those is Hexagonal Boron Nitride. We generally choose a form known as hexagonal boron nitride (h-BN). Hexagonal BN is a composite of boron and nitrogen that is both heat and chemically resistant. It is the most robust crystalline type of boron nitride, along with graphite. Since it has a composition identical to graphite, although you will even hear it named "white graphite" since it is white in colour. What is more, hardness of hexagonal BN is similar to graphite, so it is very easily to machine the parts into required shape, only one small tip, machining work should be process in dry conditions with no cooling liquid. Also, visible dust can be created during machining, so wearing mask and goggle is necessary.

Boron nitride ceramic is chemically and has relatively good thermal conductivity, low thermal expansion and microwave clarity. Boron nitride can be quickly machined as well. Moreover, glass, salts and the rest of liquid metals are non-wetting. This ensures that neither of these compounds can be moistened, and it is far more immune to chemical assaults.

Hexagonal boron nitride (h-BN) performs very well under high heat condition and is effective in the air at temperatures of up to 900 degrees C, in the vacuum at 1,900 degrees C and in the inert environment at 2,000 degrees C. BN is self-lubricating as well, as a result, it does not need the use of molecules of gas or water stuck in its layers. Because of this, in a vacuum, which is important for aerospace applications, boron nitride (BN) can work perfectly.


Product Features


√ low thermal expansion
√ excellent electrical insulator
√ high thermal shock resistance
√ low wettability to molten metals
√ relatively high thermal conductivity


Material Properties


ITEM
UNIT
BN-2000
BN-2300
BN-2800
BN-3000
Main Content
-
BN>99%
BN+Al2O3
BN+AlN
BN+ZrO2
Color
-
White
Light Grey
Dark Grey
Dark Grey
Density
g/cm3
1.95-2.00
2.25-2.35
2.75-2.85
2.90-3.00
Flexural Strength
Mpa
30
65
85
90
Compressive Strength
Mpa
55
145
205
220
Electrical Resistivity
Ω·cm
>1014
>1013
>1013
>1012
Max. Use Temp. (Air)

900
1,000
1,000
1,000
Max. Use Temp. (Vacuum)

1,900
1,750
1,800
1,750
Max. Use Temp. (Inert)

2,000
1,750
1,800
1,750
Thermal Conductivity
W/m.K
35
30
85
30
CTE (25 - 1,000 ℃)
10-6/K
1.5
2
2.8
3.5


∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.


About Us


UNIPRETEC is a representative technical ceramic company in China. Relying on the technical team with more than 10 years of experience and the cooperation of well-known domestic colleges and institutions, our company covers the manufacturing and sales of oxide, nitride and carbide ceramic products. Based on the research in the advanced ceramic industry, our company is good at providing suitable products and suggestions flexibly according to customers' applications and needs. For many years, our company has focused on meeting the needs of customers from all over the world. Many praises from customers and partners have been encouraging UNIPRETEC to move forward and develop.




"Simple things into very complex, can find new areas; Read the complex phenomenon is very simple, can be found that the new law." - - - - - -Isaac Newton


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